C

n=sqrt(2.81484052-0.0147823622*pow(x,2)+0.0190209745*pow(x,-2)+0.000336628211*pow(x,-4)+1.35687736e-05*pow(x,-6)-5.85525604e-07*pow(x,-8))

Python

n=(2.81484052-0.0147823622*x**2+0.0190209745*x**-2+0.000336628211*x**-4+1.35687736e-05*x**-6-5.85525604e-07*x**-8)**.5

Fortran

n=SQRT(2.81484052-0.0147823622*x**2+0.0190209745*x**-2+0.000336628211*x**-4+1.35687736e-05*x**-6-5.85525604e-07*x**-8)

MATLAB

n=sqrt(2.81484052-0.0147823622.*x.^2+0.0190209745.*x.^-2+0.000336628211.*x.^-4+1.35687736e-05.*x.^-6-5.85525604e-07.*x.^-8)

LaTeX

n^2=2.81484052-0.0147823622λ^{2}+0.0190209745λ^{-2}+0.000336628211λ^{-4}+1.35687736\text{×}10^{-05}λ^{-6}-5.85525604\text{×}10^{-07}λ^{-8}